Illuminating apparatus



(N9 Model.)

W. F. POLMBR.

ILLUMINATING APPARATUS.

190.397,99). Patented Feb'. 19, 1889.

iINirnn STATES 'PATENT Ottica.

WILLIAM F. FOLMER, OF BROOKLYN, NElV YORK.

ILLUMINATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 397,993, dated February19, 1889.

Application filed November 17, 1887. Serial No. 255,419. (No model.)

T0 @ZZ whom, it may COwGW/i the direction indicatedfby the arrow in Fig.Be it known that I, WILLIAM F. FOLMER, r 2 Only far enough to move theports n out of of Brooklyn, in the county of Kings and State l line withthe burner arms or pipes designed of NewYork, have lnvcntedacertain newand to be supplied from such ports, then these 5 5 5 useful Improvementin Gas-Cocks, of which i burner arms or pipes will be cut off, and stillthe following is a specification. 4 lthe ports n will `remain operativeto conduct I will describe a gas-cock embodying my j gas to their burnerarms or pipes. The plug improvement, and then point out the novel I ofthe cock may be turned still farther in the features in the claims. ldirection of the arrow to move the ports n, as 6o 1o In the accompanyingdrawings, Figure l is i well as the ports a', outot line with the burnera sectional view of a gas-cock and its conneci arms or pipes. tionsembodying my improvement. Fig. 2 is In the modification of the cockwhichl have a horizontal section ol' the cock which is inl shown in Fig.3 there are but three ports, included in Fig. 3. Fig. 3 is a horizontalsectended to control three burner arms or pipes. 6 5 15 tion of a cockof similar construcim, but The port n is about twice as wide as themodied to adapt it For controlling' a different burner arm or pipe withwhich it eoacts. The

number of burners. ports n are about the same size as theburner Similarletters of reference designate correarms or pipes with which they coact.Conscsponding parts 1n all the igu res. quently the cock may be turnedin the direc- 7o 2o L designates a gas-supply pipe. At the tionindicated by the arrow adjacent to Fig. lower end of the pipe anydesirable number 3, to cut off the burner arms or pipes with of burnerslll may be arranged. These burnwhich the ports n coact and to leave theport ers may all be controlled by a cock, N. The "nf in condition tosupply gas to its burner arm plug oi' the cock N, I have shown asprovided or pipe, and may be turned still farther in the 7 5 2 5 with acircular wheel-like hand-piece, N', and direction of the arrow to renderthe port n in` with a flat piece, N2, which may be grasped operative tosupply gas to its burner arm or by the jaws of any desirable lighter orother support. It the plug of the cock shown in device for the purposeof turning the plug of Fig. 2 or of the cock shown in Fig. 3 should thecock. be moved in the reverse direction to the ar- 8o 3o The cock N issomewhatpeculiar. Its prinrows, all the ports could be renderedinoperciple of construction is such that it may be ative, or the flameot' all the burners may be used with two burners or with any greaterlowered to any desired point. number ot' burners. I will iirst explainit The shell of the cock is shown as provided with reference to Fig. Q,where vit will be seen with stop-pins n? n3, and the hand-piece N', 85 5that the arms or pipes extending to the gasattached to the plug of thecock, is shown as burners from the shell of the cock are four providedwith a pin or projection, at. By in number, equidistant and radial. Theplug these stops the plug of the cock may be limot the cock has avertical central opening ited as to its eXtreme positions ot movement.which communicates directly with the gas- It will be seen that in thelower end of the 9o 4o pipe L, and is provided with two side ports,shell N of the cock a screw plug or nut, N3,

n, which are diametrically opposite to each is inserted. The upper endof this screwother, and two narrower ports, n, which are plug bearsagainst the lower end of the plug also opposite to eachother. The narrowports of the gas-cock. The plug of the gas-cock is n are ot aboutthecapacity of the arms or pipes Y'made longitudinally tapering, so that byad- 95 45 extending tothe burners; but the wider ports justing thescrew-plug Y3 the plug of the gasare about twice as wide as the arms orpipes cock maybe forced upwardly within the shell extending to theburners which they control. N, to compensate for wear or looseness occa-Conscquently it is possible to so turn the cock sioned in any othermanner. that all four ports will permit to flow The stop-pin n3 is shownas made in the roo 5o to the burners. This is illustrated in Fig. 3.form of a screw and as passing through the If the plug of the cockshould be turned in i portion of t-he shell N in which it fits and im-

